Build-in-public: run 5 synthetic interviews before lunch (need feedback)
I've been shipping small AI tools and hit the same wall repeatedly: I know I should talk to users more, but scheduling and note-taking slow me down. I'm testing a lightweight fix:
What I’m building
A synthetic user interview tool that runs structured interviews against target personas and returns a tight 1-pager: top objections, copy tweaks, “would buy / would try,” and next-step prompts. Think: idea → personas → guided interview runs → concise brief you can act on.
Why this might help
• Faster than booking calls when you need a directional read in hours, not weeks
• Standardized script so results are comparable across iterations
• Good for early stage positioning tests as nowadays product ideas boost
How it works (today)
1. Drop your product idea hypothesis
2. Pick a persona (or describe yours).
3. Get a one-page readout (jobs-to-be-done, objections, copy suggestions, risk flags).
Takes ~7 minutes end-to-end.
Where I need help
1. What would make a 'synthetic interview' trustworthy enough to influence your decisions?
2. Which deliverable is most useful: objection map, landing copy draft, or pricing sanity check?
3. What's the one thing that would make you try this during your next sprint?
If you're up for kicking the tires, comment and I'll drop the test link.
Happy to answer anything and share results as I iterate. Thanks!
I think the hardest part right now isn’t getting another summary — there are plenty of tools that can generate that.
What would make me try this is if the AI could surface perspectives or questions I didn’t think to ask.
If it can expand my line of thinking instead of just echoing it, that would make the insights truly valuable.
Yes, one of the key delivery of FirstSign is to Battle-test ideas by analyzing competitors and stress-tests your core assumptions; and the other key delivery is to uncover the truth by getting brutally honest feedback through live chat, free of social bias compared to real user feedbacks.
Actually I just launched it weeks, please try it out on https://firstsign.ai/ and let me know your thoughts, thx!
Thanks, fogggy — great point. We're planning a feature/idea-validation track in the next 1–2 months.
And yes: if you already have a well-built product, this can be even more useful. We can pressure-test your user-base assumption by running persona panels that compare your assumed core segment vs 1–2 adjacent segments, using your real landing/feature list/pricing. The output is a tight 1-pager: who it resonates with, top jobs-to-be-done, must-have vs. nice-to-have features, and a short list of experiments (e.g., "digest first" vs "founder asks first," packaging tweaks, fake-door tests).
If you want, I can queue you for the next run and send a sample readout when it's ready.
Good idea! I do have a question:
What if I have a well developed product to be tested against my user base assumption? Will it help as well?